Variant chr8-143575486-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_145201.6(NAPRT):c.1228G>A(p.Glu410Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000311 in 1,447,280 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

NAPRT
NM_145201.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.91

Variant links:

Genes affected

NAPRT (HGNC:30450): (nicotinate phosphoribosyltransferase) Nicotinic acid (NA; niacin) is converted by nicotinic acid phosphoribosyltransferase (NAPRT; EC 2.4.2.11) to NA mononucleotide (NaMN), which is then converted to NA adenine dinucleotide (NaAD), and finally to nicotinamide adenine dinucleotide (NAD), which serves as a coenzyme in cellular redox reactions and is an essential component of a variety of processes in cellular metabolism including response to stress (Hara et al., 2007).[supplied by OMIM, Mar 2008]

NAPRT links:

(HGNC:):

links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NAPRT	NM_145201.6 linkuse as main transcript	c.1228G>A	p.Glu410Lys	missense_variant	10/13	ENST00000449291.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NAPRT	ENST00000449291.7 linkuse as main transcript	c.1228G>A	p.Glu410Lys	missense_variant	10/13	1	NM_145201.6	P1	Q6XQN6-1
	ENST00000531730.1 linkuse as main transcript	n.436+380C>T		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000560

AC:

AN:

249920

Hom.:

AF XY:

0.0000591

AC XY:

AN XY:

135476

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000232

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000178

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000311

AC:

AN:

1447280

Hom.:

Cov.:

AF XY:

0.0000363

AC XY:

AN XY:

716650

show subpopulations

Gnomad4 AFR exome

AF:

0.0000903

Gnomad4 AMR exome

AF:

0.000202

Gnomad4 ASJ exome

AF:

0.0000384

Gnomad4 EAS exome

AF:

0.0000255

Gnomad4 SAS exome

AF:

0.0000349

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000245

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 02, 2023

The c.1228G>A (p.E410K) alteration is located in exon 10 (coding exon 10) of the NAPRT gene. This alteration results from a G to A substitution at nucleotide position 1228, causing the glutamic acid (E) at amino acid position 410 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.41

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.029

T;T;.

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

D;.;.

M_CAP

Benign

0.067

MetaRNN

Uncertain

0.70

D;D;D

MetaSVM

Benign

-0.64

MutationAssessor

Uncertain

2.7

.;M;M

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-2.0

N;N;N

REVEL

Benign

0.18

Sift

Uncertain

0.010

D;D;D

Sift4G

Uncertain

0.056

T;T;T

Polyphen

1.0

D;D;D

Vest4

0.59

MutPred

0.39

Loss of ubiquitination at K414 (P = 0.0142);Loss of ubiquitination at K414 (P = 0.0142);Loss of ubiquitination at K414 (P = 0.0142);

MVP

0.43

MPC

0.40

ClinPred

0.48

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.26

gMVP

0.62

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over